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Intelligent system for a remote diagnosis of a photovoltaic solar power plant

M.A. Sanz-Bobi, A. Muñoz, A. de Marcos, M. Bada

Usually small and mid-sized photovoltaic solar power plants are located in rural areas and typically they operate unattended. Some technicians are in charge of the supervision of these plants and, if an alarm is automatically issued, they try to investigate the problem and correct it. Sometimes these anomalies are detected some hours or days after they begin. Also the analysis of the causes once the anomaly is detected can take some additional time. All these factors motivated the development of a methodology able to perform continuous and automatic monitoring of the basic parameters of a photovoltaic solar power plant in order to detect anomalies as soon as possible, to diagnose their causes, and to immediately inform the personnel in charge of the plant. The methodology proposed starts from the study of the most significant failure modes of a photovoltaic plant through a FMEA and using this information, its typical performance is characterized by the creation of its normal behaviour models. They are used to detect the presence of a failure in an incipient or current form. Once an anomaly is detected, an automatic and intelligent diagnosis process is started in order to investigate the possible causes. The paper will describe the main features of a software tool able to detect anomalies and to diagnose them in a photovoltaic solar power plant.


Keywords:


Journal of Physics: Conference Series. Volume: 364 Issue: 1 Pages: 012119-1-012119-12

DOI reference: DOI icon 10.1088/1742-6596/364/1/012119    

Published on paper: June 2012. Published on-line: May 2012.


    Topics research:
  • *Forecasting and data mining
  • *Artificial intelligence applied to maintenance diagnosis and reliability

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